74 ENTOMOLOGICAL NEWS. [April, 



Subfamily 4. GOMPHINA. 



23. Gomphus exilis Selys. Orono, College Collection. 



24. GompJms spinosus Selys. Orono, College Collection. 



25. Gomphiis ntzvius Hag. July i5th, single 9 ; Chemo 

 Stream, over water. This specimen was referred to Mr. P. P. 

 Calvert, who made the following note: 



' ' This specimen agrees best with the description of G. nccvius 

 Hag. (in 4th Additions au Synopsis des Gomphines, p. 57), al- 

 though there are some slight color difference. G. nczvius Hag. 

 was described from a 9 from Pennsylvania. It is stated to be 

 very near G. albistylus Hag. (4th Additions, p. 55) described 

 from a 9 from Maine, and some doubt is expressed whether the 

 two may not be one species. The $ of neither has been de- 

 scribed. Until they are proved to be the same, this specimen 

 should stand for G. neevius, which it resembles more than G. 

 .albistylus. ' ' 



26. Hagenius brevistylus Selys. July I5th, single 9 Over 

 Chemo Stream. 



Tribe III. LIBELLULINA. 



Subfamily 5. CORDULINA. 



27. Cordulia libera Selys. August. Single ; over small 

 lake, Greenfield. 



28. Cordulia Uhleri Selys. Orono, College Collection. 



29. Cordulia cynosura Say. Orono, College Collection. 



Subfamily 6. LIBELLULINA. 



30. Plathemis trimaculata De Geer. Common over small 

 brooks and ponds; August and September. 



31. Libellula ^-maculata Linn. Common over brooks; Au- 

 gust and September. 



32. Libellula exusta Say. July I5th. Common over Chemo 

 Stream. 



33. Libellula pulchella Drury. Orono, College Collection. 



34. Leucorhinia proximo, (Hagen MS.) Calvert. Orono, Col- 

 lege Collection. 



35. Leucorhinia intacta Hag. July i5th, Chemo Stream. 

 Many pairs mating. The labium of all our specimens black, 

 with the external part of the lobes a little white. The labrum 

 cream colored. 



